What burger chain reigns supreme?

In a follow up to his McDonald’s map, Stephen Von Worley of Weather Sealed maps the dominating burger chains across the United States. McDonald’s obviously has a stronghold in a lot of areas but not all of them. Most noticeable is Sonic Drive-in with over 900 restaurants in Texas alone. Personally, I’m rooting for Carl’s Jr. and In-n-Out.

I love Five guys as well, but I hate this expansion they’re doing. The Five Guys outside of DC just don’t have the same taste or quality and it’s a shame to see them throwing away there standards for a buck. But alas, that’s how life goes.

It is a nice looking graphic, but that is about it. I have worked as a consultant providing location analysis for national retailers . An explanation of methodology would be nice. Mentioning an inverse square law is not methodology. I am pretty sure there are some very simple (and probably invalid) assumptions, but it would be nice to know exactly what they are.